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-rw-r--r--sound/soc/codecs/tlv320aic3x.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h
index 6db3c41..e521ac3 100644
--- a/sound/soc/codecs/tlv320aic3x.h
+++ b/sound/soc/codecs/tlv320aic3x.h
@@ -238,6 +238,10 @@
/* Default input volume */
#define DEFAULT_GAIN 0x20
+/* MICBIAS Control Register */
+#define MICBIAS_LEVEL_SHIFT (6)
+#define MICBIAS_LEVEL_MASK (3 << 6)
+
/* headset detection / button API */
/* The AIC3x supports detection of stereo headsets (GND + left + right signal)
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